/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.spark.api

import _root_.java.util
import org.apache.spark.api.plugin.{DriverPlugin, ExecutorPlugin, PluginContext, SparkPlugin}

/**
 * The parameters in init method are different in different version of Spark.
 * We make sure finally the implementation can hold all parameters, and we can handle the
 * differences.
 */
trait MLSQLExecutorPlugin extends SparkPlugin {

  override def driverPlugin(): DriverPlugin = null

  override def executorPlugin(): ExecutorPlugin = new ExecutorPlugin {
    override def init(ctx: PluginContext, extraConf: util.Map[String, String]): Unit = _init(Map[Any, Any]())

    override def shutdown(): Unit = _shutdown()
  }

  def _init(config: Map[Any, Any]): Unit

  def _shutdown(): Unit

}

